许家圣 开发者_如何学Go 2021-02-10 19:22 秧歌十柱香简谱宋文莉 2021-02-10 19:22 歌曲：十里香（十柱香）
It seems that in Javascript, if you have a reference to some DOM element, and then modify the DOM by adding additional elements to document.body, your DOM reference becomes invalidated.
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